Laser-Raman radar for air pollution probe

Abstract

As an experimental verification of a novel application of the laser-Raman radar, frequency-shifted Raman components of a Q-switched ruby-laser pulse from atmospheric molecular gases and from chemicals in an oil plume, such as CO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> , CO, SO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> , O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> , and N <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> , were analyzed selectively. These results demonstrate the practical usefulness of this new optical system as a real-time air pollution probe.